[builtins] New frame type for exits to C++ builtins

src/arm64/macro-assembler-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 1741 matching lines @@
 
 void MacroAssembler::CallExternalReference(const ExternalReference& ext,
                                            int num_arguments) {
   Mov(x0, num_arguments);
   Mov(x1, ext);
 
   CEntryStub stub(isolate(), 1);
   CallStub(&stub);
 }
 
-
-void MacroAssembler::JumpToExternalReference(const ExternalReference& builtin) {
+void MacroAssembler::JumpToExternalReference(const ExternalReference& builtin,
+                                             bool builtin_exit_frame) {
   Mov(x1, builtin);
-  CEntryStub stub(isolate(), 1);
+  CEntryStub stub(isolate(), 1, kDontSaveFPRegs, kArgvOnStack,
+                  builtin_exit_frame);
   Jump(stub.GetCode(), RelocInfo::CODE_TARGET);
 }
 
-
 void MacroAssembler::TailCallRuntime(Runtime::FunctionId fid) {
   const Runtime::Function* function = Runtime::FunctionForId(fid);
   DCHECK_EQ(1, function->result_size);
   if (function->nargs >= 0) {
     // TODO(1236192): Most runtime routines don't need the number of
     // arguments passed in because it is constant. At some point we
     // should remove this need and make the runtime routine entry code
     // smarter.
     Mov(x0, function->nargs);
   }
@@ skipping 1036 matching lines @@
 
   int offset = ExitFrameConstants::kLastExitFrameField;
   while (!saved_fp_regs.IsEmpty()) {
     const CPURegister& dst0 = saved_fp_regs.PopHighestIndex();
     const CPURegister& dst1 = saved_fp_regs.PopHighestIndex();
     offset -= 2 * kDRegSize;
     Ldp(dst1, dst0, MemOperand(fp, offset));
   }
 }
 
-
-void MacroAssembler::EnterExitFrame(bool save_doubles,
-                                    const Register& scratch,
-                                    int extra_space) {
+void MacroAssembler::EnterExitFrame(bool save_doubles, const Register& scratch,
+                                    int extra_space,
+                                    StackFrame::Type frame_type) {
   DCHECK(jssp.Is(StackPointer()));
+  DCHECK(frame_type == StackFrame::EXIT ||
+         frame_type == StackFrame::BUILTIN_EXIT);
 
   // Set up the new stack frame.
   Push(lr, fp);
   Mov(fp, StackPointer());
-  Mov(scratch, Smi::FromInt(StackFrame::EXIT));
+  Mov(scratch, Smi::FromInt(frame_type));
   Push(scratch);
   Push(xzr);
   Mov(scratch, Operand(CodeObject()));
   Push(scratch);
   //          fp[8]: CallerPC (lr)
   //    fp -> fp[0]: CallerFP (old fp)
   //          fp[-8]: STUB marker
   //          fp[-16]: Space reserved for SPOffset.
   //  jssp -> fp[-24]: CodeObject()
   STATIC_ASSERT((2 * kPointerSize) == ExitFrameConstants::kCallerSPOffset);
@@ skipping 2291 matching lines @@
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64